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JPS60253396A - Routing control system - Google Patents

Routing control system

Info

Publication number
JPS60253396A
JPS60253396A JP10836984A JP10836984A JPS60253396A JP S60253396 A JPS60253396 A JP S60253396A JP 10836984 A JP10836984 A JP 10836984A JP 10836984 A JP10836984 A JP 10836984A JP S60253396 A JPS60253396 A JP S60253396A
Authority
JP
Japan
Prior art keywords
subsystem
route
local switch
busy
idle
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP10836984A
Other languages
Japanese (ja)
Other versions
JPH0666983B2 (en
Inventor
Shiro Tanabe
史朗 田辺
Tahei Suzuki
鈴木 太平
Yukito Maejima
前島 幸仁
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP10836984A priority Critical patent/JPH0666983B2/en
Publication of JPS60253396A publication Critical patent/JPS60253396A/en
Publication of JPH0666983B2 publication Critical patent/JPH0666983B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04QSELECTING
    • H04Q3/00Selecting arrangements
    • H04Q3/42Circuit arrangements for indirect selecting controlled by common circuits, e.g. register controller, marker
    • H04Q3/54Circuit arrangements for indirect selecting controlled by common circuits, e.g. register controller, marker in which the logic circuitry controlling the exchange is centralised
    • H04Q3/545Circuit arrangements for indirect selecting controlled by common circuits, e.g. register controller, marker in which the logic circuitry controlling the exchange is centralised using a stored programme

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Exchange Systems With Centralized Control (AREA)

Abstract

PURPOSE:To attain the service performance equivalent to an electronic exchange of concentrated control for an electronic exchange of decentralized control system, by distributing the route idle/busy information on all subsystem to the memories of each subsystem, and also informing the route idle/busy state to other subsystems when said state is produced. CONSTITUTION:A subscriber 10 stored in a local switch subsystem 1 of an exchange (station A) calls a subscriber stored in a station B. In such a case, a route busy/idle table set on a main memory 5 of a local switch subsystem storing the originating subscriber is used to decide an outgoing trunk of a certain subsystem including own subsystem that is caught. Thus a trunk 9 within a local switch subsystem 1, for example, id caught. As a result, the route busy/idle information on the main memory of own local switch subsystem is rewritten in case the same route trunk within a local switch subsystem is used in the frequency higher than a fixed level. At the same time, the route idle/busy signal is transmitted to another local switch subsystem via a digital highway 8 based on a signal transmission/reception program set on the main memory.

Description

【発明の詳細な説明】 〔発明の利用分野〕 本発明はルーティング制御方式、更に詳しく言えば分散
制御の電子交換機においての出接続制御に関し、分散制
御特有の呼設定遅延障害の波及等を抑制することを可能
としたルーティング制御方式に関するものである。
[Detailed Description of the Invention] [Field of Application of the Invention] The present invention relates to a routing control system, more specifically, to control of outgoing connections in a distributed control electronic exchange, and to suppress the spread of call setup delay failures peculiar to distributed control. The present invention relates to a routing control system that makes it possible to do this.

〔発明の背景〕[Background of the invention]

集中制御(シングルプロセッサ)の電子交換機における
ルーティング制御は、出接方路のリソース管理を一元的
にできたが、分散制御の電子交換機では、同一方路が複
数のサブシステム↓こ接続されるため、その方路のリソ
ース管理が複雑になる。
Routing control in centrally controlled (single-processor) electronic exchanges allows resource management of outbound and outgoing routes to be unified, but in distributed control electronic exchanges, the same route is connected to multiple subsystems. , resource management for that route becomes complicated.

これを解決するためには、次の様な対策がとらゎている
In order to solve this problem, the following measures are being taken.

(1)出接方路を管理する専用サブシステムを設けける
(1) A dedicated subsystem can be provided to manage outbound and outbound routes.

(2)方路空き塞り情報を一定周期で転送し、共通メモ
リに書き込む。
(2) Route vacant/blocked information is transferred at regular intervals and written into the common memory.

(1)は出接方路の9理を一元的にできるが、専用プロ
セッサとの通信が増え、呼設定遅延時間が増え、また専
用プロセッサ障害時は全サブシステムに影響が波及する
(1) allows the nine processes of the ingress and egress routes to be unified, but communication with the dedicated processor increases, call setup delay time increases, and when the dedicated processor fails, the effect spreads to all subsystems.

(2)は周期プログラムにより、中央制御装置の使用率
を増加させ、はた方路空き塞り発生から。
(2) uses a periodic program to increase the usage rate of the central control unit, and prevents road blockages from occurring.

共通メモリ上の管理表にアクセスするまで時間を要する
ため、ブロック率が増大し、サービス性が低下する。
Since it takes time to access the management table on the common memory, the blocking rate increases and serviceability deteriorates.

〔発明の目的〕[Purpose of the invention]

本発明の目的は出接方路を管理する専用サブシステムを
設けることなく、集中制御の電子交換機と同等なサービ
ス性(出接呼遅延時間、障害時の波及度、ブロック率等
)を保って、ルニテイングを制御する方式を実現するこ
とである。
The purpose of the present invention is to maintain serviceability equivalent to that of a centrally controlled electronic exchange (outgoing call delay time, degree of influence in the event of a failure, block rate, etc.) without providing a dedicated subsystem for managing incoming and outgoing routes. The purpose of this invention is to realize a method for controlling lunifying.

〔発明の概要〕[Summary of the invention]

本発明は上記目的を達成するため各サブシステムの記憶
装置上に、全サブシステムの方略空き塞り情報を配し、
かつ、方略空き塞りが発生した時点で他のサブシステム
に知らしめ、方路の空キ塞り情報を書き替えるようにし
たことを特徴とする。
In order to achieve the above object, the present invention arranges strategic free/occupied information of all subsystems on the storage device of each subsystem,
In addition, the present invention is characterized in that when a route is blocked, the other subsystems are notified and the route blockage information is rewritten.

〔発明の実施例〕[Embodiments of the invention]

以下、本発明の一実施例を第1図の分散制御の交換機(
A局)により説明する。加入者10、トランク9などを
収容し、独立した交換機としての機能を持つローカルス
イッチサブシステム1,2゜3と、複数のローカルスイ
ッチサブシステムを接続するタレデムスイッチサブシス
テム4を設け、これらサブシステム間をデジタルハイウ
ニ8で結んでいる。
Hereinafter, one embodiment of the present invention will be described in the distributed control switch (
This will be explained by station A). Local switch subsystems 1 and 2゜3 that accommodate subscribers 10, trunks 9, etc. and function as independent exchanges, and Taledem switch subsystem 4 that connects multiple local switch subsystems are provided. The systems are connected by Digital Hi-Uni 8.

例えば、ローカルスイッチサブシステム1に収容されて
いる加入者10がB局に収容されている加入者に電話を
かけたとする。B局に収容される出トランク(図示せず
)は危険分散の配慮から、複数のサブシステムに収容さ
れ(この例ではローカルスイッチサブシステム1,2.
3)、その選択方法を以下に示す。
For example, assume that subscriber 10 accommodated in local switch subsystem 1 calls a subscriber accommodated in station B. Outgoing trunks (not shown) accommodated in station B are accommodated in multiple subsystems (in this example, local switch subsystems 1, 2, .
3), the selection method is shown below.

(1)発信加入者収容ローカルスイッチサブシステム内
の該出トランクを捕捉する。
(1) Capture the outgoing trunk in the local switch subsystem accommodating the originating subscriber.

(2)上記トランク捕捉失敗時は、他サブシステムの出
トランクを捕捉する。
(2) When the trunk acquisition fails, the outgoing trunk of another subsystem is acquired.

自ローカルスイッチサブシステムも含め、どのサブシス
テムのトランクを捕捉するかは、発信加入者収容ローカ
ルスイッチサブシステムの主記憶装置5上の方路空き塞
り表(第2図参照)によす決定する。すなわち、発信加
入者のダイヤル番号により、方略番号(TGN)が決定
され、方路空き塞り表をこのTGNが索引し、1ビツト
がローカルスイッチサブシステムのトランクの空/塞に
対応した情報が得られ、これにより、空トランクのある
ローカルスイッチサブシステムを選択することができる
The decision on which subsystem's trunk to seize, including the own local switch subsystem, is based on the route availability/occlusion table (see Figure 2) in the main storage device 5 of the local switch subsystem accommodating the originating subscriber. do. That is, a strategic number (TGN) is determined based on the dialed number of the calling subscriber, and this TGN indexes the route vacancy/blockage table, where 1 bit corresponds to the vacancy/blockage of the trunk in the local switch subsystem. This allows the selection of local switch subsystems with empty trunks.

例えば、ローカルスイッチサブシステム1内の出トラン
ク9を捕捉し、その結果、ローカルスイッチサブシステ
ム内の同方路トランクが全部使用中になった場合、(ま
たは一定値以上が使用中になった場合)自ローカルスイ
ッチサブシステム主記憶装置上の方略空き塞り情報を書
き替えると共に、同主記憶装置上の信号送受信プログラ
ムによって、方路基り信号をディジタルハイウニを介し
て、他のローカルスイッチサブシステムに送信する。他
のローカルスイッチサブシステムでは、信号送受信プロ
グラムにより、当信号を受信し、方略空き塞り表の該当
ビット(mりが発生した方略番号(TGN) 、ローカ
ルスイッチサブシステムで索引して得る)に来り表示を
行なう。これにより、それ以後各サブシステムで同方路
番号(TGN)に要求があった場合も、発信加入者収容
ローカルスイッチサブシステムの空き来り表を見ること
により、ローカルス、インチサブシステム1の該トラン
クがビジーであることを知り゛、ローカルスイッチ1の
該トランクの捕捉を試みない。
For example, if outgoing trunk 9 in local switch subsystem 1 is captured and as a result, all trunks in the same direction in the local switch subsystem are in use (or if more than a certain value are in use) In addition to rewriting the strategy free/occupied information in the main memory of the own local switch subsystem, the signal transmission/reception program in the main memory sends route base signals to other local switch subsystems via the digital computer. Send. In other local switch subsystems, the signal transmission/reception program receives this signal and stores it in the corresponding bit of the strategy free/occupied table (the strategy number (TGN) where the m-missing occurred, which is obtained by indexing in the local switch subsystem). Next display will be performed. As a result, even if there is a request for the same route number (TGN) in each subsystem thereafter, by looking at the availability table of the local switch subsystem accommodating the originating subscriber, it is possible to Knowing that the trunk is busy, local switch 1 does not attempt to seize the trunk.

また、トランクが来りがら空きになった場合も同様な方
法により、各サブシステムに通知する。
Also, when a trunk becomes vacant, each subsystem is notified by the same method.

〔発明の効果〕〔Effect of the invention〕

本発明によれば、出トランクのリソース管理を行なう専
用プロセッサや共通メモリを設置しないため、次の様な
効果がもたらされた。
According to the present invention, since no dedicated processor or common memory for managing outgoing trunk resources is installed, the following effects are brought about.

(1)専用プロセッサ間との通信がないため、出接呼処
理の呼設定遅延時間が短い。
(1) Since there is no communication between dedicated processors, the call setup delay time for outgoing call processing is short.

(2)障害が他プロセツサに影響を与えない。また各プ
ロセッサはスタンドアロンで動くことができる。
(2) Failures do not affect other processors. Each processor can also operate standalone.

(3)ルート空/塞が発生した時点で情報を各サブシス
テムに知らせるため、発サブシステムで空ルートのある
サブシステムを決定した後、実際に該サブシステムがビ
ジーである確率は極めて低い。
(3) Since information is notified to each subsystem when a route is empty/blocked, after the originating subsystem determines a subsystem with an empty route, the probability that the subsystem is actually busy is extremely low.

以上、すなわち、集中制御方式の交換機においてのサー
ビス性とほぼ同等のルーティング制御を分散制御の交換
機においても実現することができる。
In other words, it is possible to achieve routing control that is almost the same in serviceability as in a centralized control type exchange, even in a distributed control type exchange.

【図面の簡単な説明】[Brief explanation of drawings]

第1図は本発明を適用した分散制御の電子交換機の一実
施例の構成例、第2図は各サブシステムの主記憶装置上
にあるルート空き塞り表である。 1.2.3・・・ローカルスイッチサブシステム、4・
・・タンデムスイッチサブシステム、5・・・主記憶装
置、6・・・中央制御装置、7・・・時分割スイッチ、
8・・・ディジタルハイウニ、9・・・出トランク、1
0・・・加入者。 第 1 図 A 局 第 2゜ カメt4、空乏ン
FIG. 1 shows a configuration example of an embodiment of a distributed control electronic exchange to which the present invention is applied, and FIG. 2 shows a route free/busy table on the main memory of each subsystem. 1.2.3...Local switch subsystem, 4.
... tandem switch subsystem, 5... main memory, 6... central control unit, 7... time division switch,
8... Digital high urchin, 9... Exit trunk, 1
0...Subscriber. Figure 1 A Station 2nd camera t4, depletion

Claims (1)

【特許請求の範囲】[Claims] 中央制御装置、記憶装置、通話路装置を持ち独立の交換
動作を行なうサブシステムを複数有した分散制御方式の
電子交換機において、上記サブシステムに接続されてい
るある方路に空がなくなった場合、または空が一定値以
下になった場合、方路基り信号として、また同様に、あ
る方路が全使用中の状態から空になった場合、または、
空が一定値以上になった場合、方路空き信号として、他
の全サブシステムに知らしめ、発信加入者、あるいは入
トランク収容サブシステムは該信号をサブシステム別、
方略別に記憶し、空力路を有したサブシステムの決定を
行なうことを特徴とするルーティング制御方式。
In a distributed control type electronic switching system that has multiple subsystems that have a central control unit, storage device, and communication path device and perform independent switching operations, when a certain route connected to the subsystem becomes empty, or when the sky becomes below a certain value, as a route base signal, and similarly when a certain route goes from fully occupied to empty, or
When the vacancy exceeds a certain value, it is notified to all other subsystems as a route vacancy signal, and the originating subscriber or incoming trunk accommodating subsystem sends this signal to each subsystem,
A routing control method characterized by storing each strategy separately and determining a subsystem having an aerodynamic route.
JP10836984A 1984-05-30 1984-05-30 Routing control system Expired - Lifetime JPH0666983B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10836984A JPH0666983B2 (en) 1984-05-30 1984-05-30 Routing control system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10836984A JPH0666983B2 (en) 1984-05-30 1984-05-30 Routing control system

Publications (2)

Publication Number Publication Date
JPS60253396A true JPS60253396A (en) 1985-12-14
JPH0666983B2 JPH0666983B2 (en) 1994-08-24

Family

ID=14483015

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10836984A Expired - Lifetime JPH0666983B2 (en) 1984-05-30 1984-05-30 Routing control system

Country Status (1)

Country Link
JP (1) JPH0666983B2 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62188590A (en) * 1985-12-17 1987-08-18 アメリカン テレフオン アンド テレグラフ カムパニ− Distributed control communication exchange system
JPH06261071A (en) * 1993-09-16 1994-09-16 Hitachi Ltd Exchange system
US5734655A (en) * 1986-09-16 1998-03-31 Hitachi, Ltd. Distributed type switching system
US6618372B1 (en) 1986-09-16 2003-09-09 Hitachi, Ltd. Packet switching system having-having self-routing switches
US7058062B2 (en) 1986-09-16 2006-06-06 Hitachi, Ltd. Packet switching system having self-routing switches

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62188590A (en) * 1985-12-17 1987-08-18 アメリカン テレフオン アンド テレグラフ カムパニ− Distributed control communication exchange system
US5734655A (en) * 1986-09-16 1998-03-31 Hitachi, Ltd. Distributed type switching system
US5745495A (en) * 1986-09-16 1998-04-28 Hitachi, Ltd. Apparatus for monitoring and controlling autonomous switching of trunk/subscriber lines in a distributed switching system
US6304570B1 (en) 1986-09-16 2001-10-16 Hitachi, Ltd. Distributed type switching system
US6335934B1 (en) 1986-09-16 2002-01-01 Hitachi, Ltd. Distributed type switching system
US6389025B2 (en) 1986-09-16 2002-05-14 Hitachi, Ltd. Distributed type switching system
US6618372B1 (en) 1986-09-16 2003-09-09 Hitachi, Ltd. Packet switching system having-having self-routing switches
US6639920B2 (en) 1986-09-16 2003-10-28 Hitachi, Ltd. Distributed type switching system
US7058062B2 (en) 1986-09-16 2006-06-06 Hitachi, Ltd. Packet switching system having self-routing switches
JPH06261071A (en) * 1993-09-16 1994-09-16 Hitachi Ltd Exchange system

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JPH0666983B2 (en) 1994-08-24

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